Cool Tube Setup Help

I have 2 inline fans that i will be using to cool the cool tube. one in the ceiling pulling air in through 6" ducting, through the cool tube and i want to rig up 6 in ducting coming out of the cool tube, connected to a y shaped alluminum duct i will be using to connect the can fan combo carbon scrubber and will both exit out a hole on the opposite side of the ceiling.

Do I just need to buy the 6" alluminum connectors at Lowes?

I have a really sweet design to use as little as space as possible, but don't quite know how to connect the cool tube to the 6" ducting.

any help would be much appreciated.

thanks

I used the 6" connectors in the ceiling, since they have a "lip"... if you get the size right it can add some support. A little caulk can do wonders if the hole is a tad large or leaks light as well. One tip I would give is to keep you ducts as straight as possible, more bends=more resistance.